Roof and Ceiling Framing

Construction Man-hour Norms

Ceiling Joist

Description	Item	Tradesman Hours	Labourer Hours
	100mm x 50mm (4 in x 2 in nominal)	0.20 mhr/m - 0.0610 mhr/ft
	150mm x 50mm (6 in x 2 in nominal)	0.20 mhr/m - 0.0610 mhr/ft

Ceiling Dwang

Description	Item	Tradesman Hours	Labourer Hours
	100mm x 50mm (4 in x 2 in nominal)	0.21 mhr/m - 0.0640 mhr/ft

Ceiling Strapping

Description	Item	Tradesman Hours	Labourer Hours
	50mm x 25mm (2 in x 1 in nominal)	0.08 mhr/m - 0.0244 mhr/ft
	100mm x 25mm (4 in x 1 in nominal)	0.10 mhr/m - 0.0305 mhr/ft

Rafter

Description	Item	Tradesman Hours	Labourer Hours
	100mm x 50mm (4 in x 2 in nominal)	0.18 mhr/m - 0.0549 mhr/ft
	150mm x 50mm (6 in x 2 in nominal)	0.20 mhr/m - 0.0610 mhr/ft
	200mm x 50mm (8 in x 2 in nominal)	0.22 mhr/m - 0.0671 mhr/ft

Collar Tie

Description	Item	Tradesman Hours	Labourer Hours
	150mm x 25mm (6 in x 1 in nominal)	0.17 mhr/m - 0.0518 mhr/ft

Strut and Brace

Description	Item	Tradesman Hours	Labourer Hours
	100mm x 50mm (4 in x 2 in nominal)	0.12 mhr/m - 0.0366 mhr/ft
	100mm x 75mm (4 in x 3 in nominal)	0.22 mhr/m - 0.0671 mhr/ft

Purlin

Description	Item	Tradesman Hours	Labourer Hours
	75mm x 50mm (3 in x 2 in nominal)	0.12 mhr/m - 0.0366 mhr/ft
	100mm x 50mm (4 in x 2 in nominal)	0.15 mhr/m - 0.0457 mhr/ft
	150mm x 50mm (6 in x 2 in nominal)	0.17 mhr/m - 0.0518 mhr/ft
	200mm x 50mm (8 in x 2 in nominal)	0.20 mhr/m - 0.0610 mhr/ft

Eaves Framing

Description	Item	Tradesman Hours	Labourer Hours
	75mm x 50mm (3 in x 2 in nominal)	0.18 mhr/m - 0.0549 mhr/ft
	100mm x 50mm (4 in x 2 in nominal)	0.20 mhr/m - 0.0610 mhr/ft

Fascia

Description	Item	Tradesman Hours	Labourer Hours
	100mm x 50mm (4 in x 2 in nominal)	0.17 mhr/m - 0.0518 mhr/ft
	150mm x 50mm (6 in x 2 in nominal)	0.20 mhr/m - 0.0610 mhr/ft

Ridge Board

Description	Item	Tradesman Hours	Labourer Hours
	150mm x 25mm (6 in x 1 in nominal)	0.20 mhr/m - 0.0610 mhr/ft
	200mm x 25mm (8 in x 1 in nominal)	0.22 mhr/m - 0.0671 mhr/ft
	100mm x 50mm (4 in x 2 in nominal)	0.17 mhr/m - 0.0518 mhr/ft

Valley Board

Description	Item	Tradesman Hours	Labourer Hours
	150mm x 25mm (6 in x 1 in nominal)	0.18 mhr/m - 0.0549 mhr/ft
	200mm x 25mm (8 in x 1 in nominal)	0.20 mhr/m - 0.0610 mhr/ft
	150mm x 50mm (6 in x 2 in nominal)	0.16 mhr/m - 0.0488 mhr/ft
	200mm x 50mm (8 in x 2 in nominal)	0.21 mhr/m - 0.0640 mhr/ft

Beams and Lintels

Description	Item	Tradesman Hours	Labourer Hours
	200mm x 50mm (8 in x 2 in nominal)	0.27 mhr/m - 0.0823 mhr/ft
	300mm x 75mm (12 in x 3 in nominal)	0.34 mhr/m - 0.1036 mhr/ft
	200mm x 100mm (8 in x 4 in nominal)	0.34 mhr/m - 0.1036 mhr/ft
	300mm x 100mm (12 in x 4 in nominal)	0.45 mhr/m - 0.1372 mhr/ft

Posts

Description	Item	Tradesman Hours	Labourer Hours
	100mm x 100mm (4 in x 4 in nominal)	0.28 mhr/m - 0.0853 mhr/ft

Prefabricated Roof Trusses (Erection Only)

Description	Item	Tradesman Hours	Labourer Hours
	6m span (19.7 ft)	1.50 mhr/No
	9m span (29.5 ft)	2.00 mhr/No
	12m span (39.4 ft)	3.00 mhr/No

Planning Production Rates

Roof Trusses

Category	Description	Slow	Ave	Fast
Roof Trusses			1.3 no/hr

Wall Plates

Category	Description	Slow	Ave	Fast
Wall Plates			2.7 m/hr - 8.9 ft/hr

Roof Rafters

Category	Description	Slow	Ave	Fast
Roof Rafters			1.2 m/hr - 3.9 ft/hr

Ceiling Joists

Category	Description	Slow	Ave	Fast
Ceiling Joists			32.1 m/hr - 105.3 ft/hr

Roof Carcass

Category	Description	Slow	Ave	Fast
Common Rafters	under 3m (under 9.8ft)	18.2 no/hr	20.0 no/hr	21.7 no/hr
	3–6m (9.8–19.7ft)	13.3 no/hr	16.6 no/hr	18.2 no/hr
	over 6m (over 19.7ft)	14.1 no/hr	15.6 no/hr	16.1 no/hr
Jack Rafters	under 3m (under 9.8ft)	18.8 no/hr	20.1 no/hr	21.7 no/hr
	3–6m (9.8–19.7ft)	10.4 no/hr	16.1 no/hr	16.6 no/hr
Purlins	under 3m (under 9.8ft)	5.1 no/hr	5.4 no/hr	5.8 no/hr
	3–6m (9.8–19.7ft)	4.3 no/hr	4.8 no/hr	5.1 no/hr
	over 6m (over 19.7ft)	3.5 no/hr	4.3 no/hr	4.6 no/hr
Binders	under 3m (under 9.8ft)	5.7 no/hr	6.6 no/hr	7.6 no/hr
	3–6m (9.8–19.7ft)	2.1 no/hr	2.3 no/hr	2.5 no/hr
	over 6m (over 19.7ft)	1.3 no/hr	1.5 no/hr	1.6 no/hr
Hangers	under 3m (under 9.8ft)	8.2 no/hr	9.0 no/hr	9.6 no/hr
Collars	under 3m (under 9.8ft)	7.6 no/hr	8.0 no/hr	9.1 no/hr
	3–6m (9.8–19.7ft)	6.5 no/hr	7.4 no/hr	8.3 no/hr
Ridge Boards	under 3m (under 9.8ft)	12.0 no/hr	13.1 no/hr	15.3 no/hr
Cut Rafter Feet to line		142.0 no/hr	166.0 no/hr	175.0 no/hr

Roof Soffits

Category	Description	Slow	Ave	Fast
Softwood	nailed		9.2 m/hr - 30.2 ft/hr
	screwed		3.9 m/hr - 12.8 ft/hr
Asbestos (under 300mm)	nailed		9.1 m/hr - 29.9 ft/hr
	screwed		3.8 m/hr - 12.5 ft/hr
Asbestos (over 300mm)	nailed		3.5 m/hr - 11.5 ft/hr
	screwed		1.3 m/hr - 4.3 ft/hr

Roof Fascia Panels

Category	Description	Slow	Ave	Fast
	Softwood	5.1 m/hr - 16.7 ft/hr	7.2 m/hr - 23.6 ft/hr	9.3 m/hr - 30.5 ft/hr
	Asbestos	1.3 m/hr - 4.3 ft/hr	2.5 m/hr - 8.2 ft/hr	3.9 m/hr - 12.8 ft/hr

Roof Fascia Panel Studding

Category	Description	Slow	Ave	Fast
Roof Facia Panel Studding	nailed	7.3 m/hr - 24.0 ft/hr	8.1 m/hr - 26.6 ft/hr	9.0 m/hr - 29.5 ft/hr
	screwed	4.6 m/hr - 15.1 ft/hr	5.2 m/hr - 17.1 ft/hr	5.8 m/hr - 19.0 ft/hr
	bolted to beams	5.4 m/hr - 17.7 ft/hr	5.9 m/hr - 19.4 ft/hr	6.6 m/hr - 21.7 ft/hr

Roof Works

Category	Description	Slow	Ave	Fast
	Fix Herringbone Strutting		5.1 m/hr - 16.7 ft/hr
	Fix Firing Strips		25.0 m/hr - 82.0 ft/hr
	Fix Drip/Tilt Filleting		20.5 m/hr - 67.3 ft/hr

Last updated on November 27, 2025

Staircases Bracing